/* Deprecated. Do not use. */
void get_current_time(struct date_time *dt)
{
struct tm tm;
time_t now;
now = time(NULL);
(void)gmtime_r(&now, &tm);
Dmsg6(200, "m=%d d=%d y=%d h=%d m=%d s=%d\n", tm.tm_mon+1, tm.tm_mday, tm.tm_year+1900,
tm.tm_hour, tm.tm_min, tm.tm_sec);
tm_encode(dt, &tm);
#ifdef DEBUG
Dmsg2(200, "jday=%f jmin=%f\n", dt->julian_day_number, dt->julian_day_fraction);
tm_decode(dt, &tm);
Dmsg6(200, "m=%d d=%d y=%d h=%d m=%d s=%d\n", tm.tm_mon+1, tm.tm_mday, tm.tm_year+1900,
tm.tm_hour, tm.tm_min, tm.tm_sec);
#endif
}
static inline bool write_data_to_block(DEV_BLOCK *block, DEV_RECORD *rec)
{
rec->remlen = block->buf_len - block->binbuf;
/*
* Write as much of data as possible
*/
if (rec->remlen >= rec->remainder) {
memcpy(block->bufp, rec->data + (rec->data_len - rec->remainder), rec->remainder);
block->bufp += rec->remainder;
block->binbuf += rec->remainder;
} else {
memcpy(block->bufp, rec->data + (rec->data_len - rec->remainder), rec->remlen);
#ifdef xxxxxSMCHECK
if (!sm_check_rtn(__FILE__, __LINE__, False)) {
/*
* We damaged a buffer
*/
Dmsg6(0, "Damaged block FI=%s SessId=%d Strm=%s len=%d\n"
"rem=%d remainder=%d\n",
FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
stream_to_ascii(buf2, rec->Stream, rec->FileIndex), rec->data_len,
rec->remlen, rec->remainder);
Dmsg5(0, "Damaged block: bufp=%x binbuf=%d buf_len=%d rem=%d moved=%d\n",
block->bufp, block->binbuf, block->buf_len, block->buf_len-block->binbuf,
rec->remlen);
Dmsg2(0, "Damaged block: buf=%x binbuffrombuf=%d \n",
block->buf, block->bufp-block->buf);
Emsg0(M_ABORT, 0, _("Damaged buffer\n"));
}
#endif
block->bufp += rec->remlen;
block->binbuf += rec->remlen;
rec->remainder -= rec->remlen;
return false; /* did partial transfer */
}
return true;
}
void catalog_request(JCR *jcr, BSOCK *bs)
{
MEDIA_DBR mr, sdmr;
JOBMEDIA_DBR jm;
char Job[MAX_NAME_LENGTH];
char pool_name[MAX_NAME_LENGTH];
int index, ok, label, writing;
POOLMEM *omsg;
POOL_DBR pr;
uint32_t Stripe, Copy;
uint64_t MediaId;
utime_t VolFirstWritten;
utime_t VolLastWritten;
memset(&sdmr, 0, sizeof(sdmr));
memset(&jm, 0, sizeof(jm));
Dsm_check(100);
/*
* Request to find next appendable Volume for this Job
*/
Dmsg1(100, "catreq %s", bs->msg);
if (!jcr->db) {
omsg = get_memory(bs->msglen+1);
pm_strcpy(omsg, bs->msg);
bs->fsend(_("1990 Invalid Catalog Request: %s"), omsg);
Jmsg1(jcr, M_FATAL, 0, _("Invalid Catalog request; DB not open: %s"), omsg);
free_memory(omsg);
return;
}
/*
* Find next appendable medium for SD
*/
if (sscanf(bs->msg, Find_media, &Job, &index, &pool_name, &mr.MediaType) == 4) {
memset(&pr, 0, sizeof(pr));
bstrncpy(pr.Name, pool_name, sizeof(pr.Name));
unbash_spaces(pr.Name);
ok = db_get_pool_record(jcr, jcr->db, &pr);
if (ok) {
mr.PoolId = pr.PoolId;
set_storageid_in_mr(jcr->res.wstore, &mr);
mr.ScratchPoolId = pr.ScratchPoolId;
ok = find_next_volume_for_append(jcr, &mr, index, fnv_create_vol, fnv_prune);
Dmsg3(050, "find_media ok=%d idx=%d vol=%s\n", ok, index, mr.VolumeName);
}
/*
* Send Find Media response to Storage daemon
*/
if (ok) {
send_volume_info_to_storage_daemon(jcr, bs, &mr);
} else {
bs->fsend(_("1901 No Media.\n"));
Dmsg0(500, "1901 No Media.\n");
}
/*
* Request to find specific Volume information
*/
} else if (sscanf(bs->msg, Get_Vol_Info, &Job, &mr.VolumeName, &writing) == 3) {
Dmsg1(100, "CatReq GetVolInfo Vol=%s\n", mr.VolumeName);
/*
* Find the Volume
*/
unbash_spaces(mr.VolumeName);
if (db_get_media_record(jcr, jcr->db, &mr)) {
const char *reason = NULL; /* detailed reason for rejection */
/*
* If we are reading, accept any volume (reason == NULL)
* If we are writing, check if the Volume is valid
* for this job, and do a recycle if necessary
*/
if (writing) {
/*
* SD wants to write this Volume, so make
* sure it is suitable for this job, i.e.
* Pool matches, and it is either Append or Recycle
* and Media Type matches and Pool allows any volume.
*/
if (mr.PoolId != jcr->jr.PoolId) {
reason = _("not in Pool");
} else if (!bstrcmp(mr.MediaType, jcr->res.wstore->media_type)) {
reason = _("not correct MediaType");
} else {
/*
* Now try recycling if necessary
* reason set non-NULL if we cannot use it
*/
check_if_volume_valid_or_recyclable(jcr, &mr, &reason);
}
}
if (!reason && mr.Enabled != 1) {
reason = _("is not Enabled");
}
if (reason == NULL) {
/*
* Send Find Media response to Storage daemon
*/
send_volume_info_to_storage_daemon(jcr, bs, &mr);
} else {
/* Not suitable volume */
bs->fsend(_("1998 Volume \"%s\" catalog status is %s, %s.\n"), mr.VolumeName,
mr.VolStatus, reason);
}
} else {
bs->fsend(_("1997 Volume \"%s\" not in catalog.\n"), mr.VolumeName);
Dmsg1(100, "1997 Volume \"%s\" not in catalog.\n", mr.VolumeName);
}
/*
* Request to update Media record. Comes typically at the end
* of a Storage daemon Job Session, when labeling/relabeling a
* Volume, or when an EOF mark is written.
*/
} else if (sscanf(bs->msg, Update_media, &Job, &sdmr.VolumeName,
&sdmr.VolJobs, &sdmr.VolFiles, &sdmr.VolBlocks, &sdmr.VolBytes,
&sdmr.VolMounts, &sdmr.VolErrors, &sdmr.VolWrites, &sdmr.MaxVolBytes,
&VolLastWritten, &sdmr.VolStatus, &sdmr.Slot, &label, &sdmr.InChanger,
&sdmr.VolReadTime, &sdmr.VolWriteTime, &VolFirstWritten) == 18) {
db_lock(jcr->db);
Dmsg3(400, "Update media %s oldStat=%s newStat=%s\n", sdmr.VolumeName,
mr.VolStatus, sdmr.VolStatus);
bstrncpy(mr.VolumeName, sdmr.VolumeName, sizeof(mr.VolumeName)); /* copy Volume name */
unbash_spaces(mr.VolumeName);
if (!db_get_media_record(jcr, jcr->db, &mr)) {
Jmsg(jcr, M_ERROR, 0, _("Unable to get Media record for Volume %s: ERR=%s\n"),
mr.VolumeName, db_strerror(jcr->db));
bs->fsend(_("1991 Catalog Request for vol=%s failed: %s"),
mr.VolumeName, db_strerror(jcr->db));
goto bail_out;
}
/* Set first written time if this is first job */
if (mr.FirstWritten == 0) {
if (VolFirstWritten == 0) {
mr.FirstWritten = jcr->start_time; /* use Job start time as first write */
} else {
mr.FirstWritten = VolFirstWritten;
}
mr.set_first_written = true;
}
/* If we just labeled the tape set time */
if (label || mr.LabelDate == 0) {
mr.LabelDate = jcr->start_time;
mr.set_label_date = true;
if (mr.InitialWrite == 0) {
mr.InitialWrite = jcr->start_time;
}
Dmsg2(400, "label=%d labeldate=%d\n", label, mr.LabelDate);
} else {
/*
* Insanity check for VolFiles get set to a smaller value
*/
if (sdmr.VolFiles < mr.VolFiles) {
Jmsg(jcr, M_FATAL, 0, _("Volume Files at %u being set to %u"
" for Volume \"%s\". This is incorrect.\n"),
mr.VolFiles, sdmr.VolFiles, mr.VolumeName);
bs->fsend(_("1992 Update Media error. VolFiles=%u, CatFiles=%u\n"),
sdmr.VolFiles, mr.VolFiles);
goto bail_out;
}
}
Dmsg2(400, "Update media: BefVolJobs=%u After=%u\n", mr.VolJobs, sdmr.VolJobs);
/*
* Check if the volume has been written by the job,
* and update the LastWritten field if needed.
*/
if (mr.VolBlocks != sdmr.VolBlocks && VolLastWritten != 0) {
mr.LastWritten = VolLastWritten;
}
/*
* Update to point to the last device used to write the Volume.
* However, do so only if we are writing the tape, i.e.
* the number of VolWrites has increased.
*/
if (jcr->res.wstore && sdmr.VolWrites > mr.VolWrites) {
Dmsg2(050, "Update StorageId old=%d new=%d\n",
mr.StorageId, jcr->res.wstore->StorageId);
/* Update StorageId after write */
set_storageid_in_mr(jcr->res.wstore, &mr);
} else {
/* Nothing written, reset same StorageId */
set_storageid_in_mr(NULL, &mr);
}
/* Copy updated values to original media record */
mr.VolJobs = sdmr.VolJobs;
mr.VolFiles = sdmr.VolFiles;
mr.VolBlocks = sdmr.VolBlocks;
mr.VolBytes = sdmr.VolBytes;
mr.VolMounts = sdmr.VolMounts;
mr.VolErrors = sdmr.VolErrors;
mr.VolWrites = sdmr.VolWrites;
mr.Slot = sdmr.Slot;
mr.InChanger = sdmr.InChanger;
bstrncpy(mr.VolStatus, sdmr.VolStatus, sizeof(mr.VolStatus));
mr.VolReadTime = sdmr.VolReadTime;
mr.VolWriteTime = sdmr.VolWriteTime;
Dmsg2(400, "db_update_media_record. Stat=%s Vol=%s\n", mr.VolStatus, mr.VolumeName);
/*
* Update the database, then before sending the response to the
* SD, check if the Volume has expired.
*/
if (!db_update_media_record(jcr, jcr->db, &mr)) {
Jmsg(jcr, M_FATAL, 0, _("Catalog error updating Media record. %s"),
db_strerror(jcr->db));
bs->fsend(_("1993 Update Media error\n"));
Dmsg0(400, "send error\n");
} else {
(void)has_volume_expired(jcr, &mr);
send_volume_info_to_storage_daemon(jcr, bs, &mr);
}
bail_out:
db_unlock(jcr->db);
Dmsg1(400, ">CatReq response: %s", bs->msg);
Dmsg1(400, "Leave catreq jcr 0x%x\n", jcr);
return;
/*
* Request to create a JobMedia record
*/
} else if (sscanf(bs->msg, Create_job_media, &Job,
&jm.FirstIndex, &jm.LastIndex, &jm.StartFile, &jm.EndFile,
&jm.StartBlock, &jm.EndBlock, &Copy, &Stripe, &MediaId) == 10) {
if (jcr->mig_jcr) {
jm.JobId = jcr->mig_jcr->JobId;
} else {
jm.JobId = jcr->JobId;
}
jm.MediaId = MediaId;
Dmsg6(400, "create_jobmedia JobId=%d MediaId=%d SF=%d EF=%d FI=%d LI=%d\n",
jm.JobId, jm.MediaId, jm.StartFile, jm.EndFile, jm.FirstIndex, jm.LastIndex);
if (!db_create_jobmedia_record(jcr, jcr->db, &jm)) {
Jmsg(jcr, M_FATAL, 0, _("Catalog error creating JobMedia record. %s"),
db_strerror(jcr->db));
bs->fsend(_("1992 Create JobMedia error\n"));
} else {
Dmsg0(400, "JobMedia record created\n");
bs->fsend(OK_create);
}
} else {
omsg = get_memory(bs->msglen+1);
pm_strcpy(omsg, bs->msg);
bs->fsend(_("1990 Invalid Catalog Request: %s"), omsg);
Jmsg1(jcr, M_FATAL, 0, _("Invalid Catalog request: %s"), omsg);
free_memory(omsg);
}
Dmsg1(400, ">CatReq response: %s", bs->msg);
Dmsg1(400, "Leave catreq jcr 0x%x\n", jcr);
return;
}
/*
* Read the header record
*/
static bool read_header(DCR *dcr, DEV_BLOCK *block, DEV_RECORD *rec)
{
ser_declare;
uint32_t VolSessionId;
uint32_t VolSessionTime;
int32_t FileIndex;
int32_t Stream;
uint32_t rhl;
char buf1[100], buf2[100];
Dmsg0(dbgep, "=== rpath 1 read_header\n");
/* Clear state flags */
rec->state_bits = 0;
if (block->dev->is_tape()) {
rec->state_bits |= REC_ISTAPE;
}
rec->Block = ((DEVICE *)block->dev)->EndBlock;
rec->File = ((DEVICE *)block->dev)->EndFile;
/*
* Get the header. There is always a full header,
* otherwise we find it in the next block.
*/
Dmsg3(read_dbglvl, "Block=%d Ver=%d block_len=%u\n",
block->BlockNumber, block->BlockVer, block->block_len);
if (block->BlockVer == 1) {
rhl = RECHDR1_LENGTH;
} else {
rhl = RECHDR2_LENGTH;
}
if (rec->remlen >= rhl) {
Dmsg0(dbgep, "=== rpath 2 begin unserial header\n");
Dmsg4(read_dbglvl, "read_header: remlen=%d data_len=%d rem=%d blkver=%d\n",
rec->remlen, rec->data_len, rec->remainder, block->BlockVer);
unser_begin(block->bufp, WRITE_RECHDR_LENGTH);
if (block->BlockVer == 1) {
unser_uint32(VolSessionId);
unser_uint32(VolSessionTime);
} else {
VolSessionId = block->VolSessionId;
VolSessionTime = block->VolSessionTime;
}
unser_int32(FileIndex);
unser_int32(Stream);
unser_uint32(rec->data_bytes);
block->bufp += rhl;
block->binbuf -= rhl;
rec->remlen -= rhl;
/* If we are looking for more (remainder!=0), we reject anything
* where the VolSessionId and VolSessionTime don't agree
*/
if (rec->remainder && (rec->VolSessionId != VolSessionId ||
rec->VolSessionTime != VolSessionTime)) {
rec->state_bits |= REC_NO_MATCH;
Dmsg0(read_dbglvl, "remainder and VolSession doesn't match\n");
Dmsg0(dbgep, "=== rpath 4 VolSession no match\n");
return false; /* This is from some other Session */
}
/* if Stream is negative, it means that this is a continuation
* of a previous partially written record.
*/
if (Stream < 0) { /* continuation record? */
Dmsg0(dbgep, "=== rpath 5 negative stream\n");
Dmsg1(read_dbglvl, "Got negative Stream => continuation. remainder=%d\n",
rec->remainder);
rec->state_bits |= REC_CONTINUATION;
if (!rec->remainder) { /* if we didn't read previously */
Dmsg0(dbgep, "=== rpath 6 no remainder\n");
rec->data_len = 0; /* return data as if no continuation */
} else if (rec->Stream != -Stream) {
Dmsg0(dbgep, "=== rpath 7 wrong cont stream\n");
rec->state_bits |= REC_NO_MATCH;
return false; /* This is from some other Session */
}
rec->Stream = -Stream; /* set correct Stream */
rec->maskedStream = rec->Stream & STREAMMASK_TYPE;
} else { /* Regular record */
Dmsg0(dbgep, "=== rpath 8 normal stream\n");
rec->Stream = Stream;
rec->maskedStream = rec->Stream & STREAMMASK_TYPE;
rec->data_len = 0; /* transfer to beginning of data */
}
rec->VolSessionId = VolSessionId;
rec->VolSessionTime = VolSessionTime;
rec->FileIndex = FileIndex;
if (FileIndex > 0) {
Dmsg0(dbgep, "=== rpath 9 FileIndex>0\n");
if (block->FirstIndex == 0) {
Dmsg0(dbgep, "=== rpath 10 FirstIndex\n");
block->FirstIndex = FileIndex;
}
block->LastIndex = rec->FileIndex;
}
Dmsg6(read_dbglvl, "read_header: FI=%s SessId=%d Strm=%s len=%u rec->remlen=%d data_len=%d\n",
FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
stream_to_ascii(buf2, rec->Stream, rec->FileIndex), rec->data_bytes, rec->remlen,
rec->data_len);
} else {
Dmsg0(dbgep, "=== rpath 11a block out of records\n");
/*
* No more records in this block because the number
* of remaining bytes are less than a record header
* length, so return empty handed, but indicate that
* he must read again. By returning, we allow the
* higher level routine to fetch the next block and
* then reread.
*/
Dmsg0(read_dbglvl, "read_header: End of block\n");
rec->state_bits |= (REC_NO_HEADER | REC_BLOCK_EMPTY);
empty_block(block); /* mark block empty */
return false;
}
/* Sanity check */
if (rec->data_bytes >= MAX_BLOCK_LENGTH) {
Dmsg0(dbgep, "=== rpath 11b maxlen too big\n");
/*
* Something is wrong, force read of next block, abort
* continuing with this block.
*/
rec->state_bits |= (REC_NO_HEADER | REC_BLOCK_EMPTY);
empty_block(block);
Jmsg2(dcr->jcr, M_WARNING, 0, _("Sanity check failed. maxlen=%d datalen=%d. Block discarded.\n"),
MAX_BLOCK_LENGTH, rec->data_bytes);
return false;
}
rec->data = check_pool_memory_size(rec->data, rec->data_len+rec->data_bytes);
rec->rstate = st_data;
return true;
}
/*
* BSR + EOF => begin of EOF + EIO
* BSR + BSR + EOF => last block
* current_block = -1
*/
int vtape::bsr(int count)
{
ASSERT(online);
ASSERT(current_file >= 0);
ASSERT(count == 1);
ASSERT(fd >= 0);
check_eof();
if (!count) {
return 0;
}
int ret=0;
int last_f=0;
int last_b=0;
boffset_t last=-1, last2=-1;
boffset_t orig = lseek(fd, 0, SEEK_CUR);
int orig_f = current_file;
int orig_b = current_block;
Dmsg4(dbglevel, "bsr(%i) cur_blk=%i orig=%lli cur_FM=%lli\n",
count, current_block, orig, cur_FM);
/* begin of tape, do nothing */
if (atBOT) {
errno = EIO;
return -1;
}
/* at EOF 0:-1 BOT=0 EOD=0 EOF=0 ERR: Input/output error */
if (atEOF) {
lseek(fd, cur_FM, SEEK_SET);
atEOF = false;
if (current_file > 0) {
current_file--;
}
current_block=-1;
errno = EIO;
return -1;
}
/*
* First, go to cur/last_FM and read all blocks to find the good one
*/
if (cur_FM == orig) { /* already just before EOF */
lseek(fd, last_FM, SEEK_SET);
} else {
lseek(fd, cur_FM, SEEK_SET);
}
ret = read_fm(VT_READ_EOF);
do {
if (!atEOF) {
last2 = last; /* keep track of the 2 last blocs position */
last = lseek(fd, 0, SEEK_CUR);
last_f = current_file;
last_b = current_block;
Dmsg6(dbglevel, "EOF=%i last2=%lli last=%lli < orig=%lli %i:%i\n",
atEOF, last2, last, orig, current_file, current_block);
}
ret = fsr(1);
} while ((lseek(fd, 0, SEEK_CUR) < orig) && (ret == 0));
if (last2 > 0 && atEOF) { /* we take the previous position */
lseek(fd, last2, SEEK_SET);
current_file = last_f;
current_block = last_b - 1;
Dmsg3(dbglevel, "1 set offset2=%lli %i:%i\n",
last, current_file, current_block);
} else if (last > 0) {
lseek(fd, last, SEEK_SET);
current_file = last_f;
current_block = last_b;
Dmsg3(dbglevel, "2 set offset=%lli %i:%i\n",
last, current_file, current_block);
} else {
lseek(fd, orig, SEEK_SET);
current_file = orig_f;
current_block = orig_b;
return -1;
}
Dmsg2(dbglevel, "bsr %i:%i\n", current_file, current_block);
errno=0;
atEOT = atEOF = atEOD = false;
atBOT = (lseek(fd, 0, SEEK_CUR) - (sizeof(uint32_t)+2*sizeof(boffset_t))) == 0;
if (orig_b == -1) {
current_block = orig_b;
}
return 0;
}
/*
* Read a Record from the block
*
* Returns: false if nothing read or if the continuation record does not match.
* In both of these cases, a block read must be done.
* true if at least the record header was read, this
* routine may have to be called again with a new
* block if the entire record was not read.
*/
bool read_record_from_block(DCR *dcr, DEV_RECORD *rec)
{
ser_declare;
uint32_t remlen;
uint32_t VolSessionId;
uint32_t VolSessionTime;
int32_t FileIndex;
int32_t Stream;
uint32_t data_bytes;
uint32_t rhl;
char buf1[100], buf2[100];
remlen = dcr->block->binbuf;
/*
* Clear state flags
*/
clear_all_bits(REC_STATE_MAX, rec->state_bits);
if (dcr->block->dev->is_tape()) {
set_bit(REC_ISTAPE, rec->state_bits);
}
rec->Block = ((DEVICE *)(dcr->block->dev))->EndBlock;
rec->File = ((DEVICE *)(dcr->block->dev))->EndFile;
/*
* Get the header. There is always a full header, otherwise we find it in the next block.
*/
Dmsg3(450, "Block=%d Ver=%d size=%u\n", dcr->block->BlockNumber, dcr->block->BlockVer,
dcr->block->block_len);
if (dcr->block->BlockVer == 1) {
rhl = RECHDR1_LENGTH;
} else {
rhl = RECHDR2_LENGTH;
}
if (remlen >= rhl) {
Dmsg4(450, "Enter read_record_block: remlen=%d data_len=%d rem=%d blkver=%d\n",
remlen, rec->data_len, rec->remainder, dcr->block->BlockVer);
unser_begin(dcr->block->bufp, WRITE_RECHDR_LENGTH);
if (dcr->block->BlockVer == 1) {
unser_uint32(VolSessionId);
unser_uint32(VolSessionTime);
} else {
VolSessionId = dcr->block->VolSessionId;
VolSessionTime = dcr->block->VolSessionTime;
}
unser_int32(FileIndex);
unser_int32(Stream);
unser_uint32(data_bytes);
dcr->block->bufp += rhl;
dcr->block->binbuf -= rhl;
remlen -= rhl;
/*
* If we are looking for more (remainder!=0), we reject anything
* where the VolSessionId and VolSessionTime don't agree
*/
if (rec->remainder && (rec->VolSessionId != VolSessionId ||
rec->VolSessionTime != VolSessionTime)) {
set_bit(REC_NO_MATCH, rec->state_bits);
Dmsg0(450, "remainder and VolSession doesn't match\n");
return false; /* This is from some other Session */
}
/*
* If Stream is negative, it means that this is a continuation
* of a previous partially written record.
*/
if (Stream < 0) { /* continuation record? */
Dmsg1(500, "Got negative Stream => continuation. remainder=%d\n", rec->remainder);
set_bit(REC_CONTINUATION, rec->state_bits);
if (!rec->remainder) { /* if we didn't read previously */
rec->data_len = 0; /* return data as if no continuation */
} else if (rec->Stream != -Stream) {
set_bit(REC_NO_MATCH, rec->state_bits);
return false; /* This is from some other Session */
}
rec->Stream = -Stream; /* set correct Stream */
rec->maskedStream = rec->Stream & STREAMMASK_TYPE;
} else { /* Regular record */
rec->Stream = Stream;
rec->maskedStream = rec->Stream & STREAMMASK_TYPE;
rec->data_len = 0; /* transfer to beginning of data */
}
rec->VolSessionId = VolSessionId;
rec->VolSessionTime = VolSessionTime;
rec->FileIndex = FileIndex;
if (FileIndex > 0) {
if (dcr->block->FirstIndex == 0) {
dcr->block->FirstIndex = FileIndex;
}
dcr->block->LastIndex = FileIndex;
}
Dmsg6(450, "rd_rec_blk() got FI=%s SessId=%d Strm=%s len=%u\n"
"remlen=%d data_len=%d\n",
FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
stream_to_ascii(buf2, rec->Stream, rec->FileIndex), data_bytes, remlen,
rec->data_len);
} else {
/*
* No more records in this block because the number
* of remaining bytes are less than a record header
* length, so return empty handed, but indicate that
* he must read again. By returning, we allow the
* higher level routine to fetch the next block and
* then reread.
*/
Dmsg0(450, "read_record_block: nothing\n");
set_bit(REC_NO_HEADER, rec->state_bits);
set_bit(REC_BLOCK_EMPTY, rec->state_bits);
empty_block(dcr->block); /* mark block empty */
return false;
}
/* Sanity check */
if (data_bytes >= MAX_BLOCK_LENGTH) {
/*
* Something is wrong, force read of next block, abort
* continuing with this block.
*/
set_bit(REC_NO_HEADER, rec->state_bits);
set_bit(REC_BLOCK_EMPTY, rec->state_bits);
empty_block(dcr->block);
Jmsg2(dcr->jcr, M_WARNING, 0, _("Sanity check failed. maxlen=%d datalen=%d. Block discarded.\n"),
MAX_BLOCK_LENGTH, data_bytes);
return false;
}
rec->data = check_pool_memory_size(rec->data, rec->data_len + data_bytes);
/*
* At this point, we have read the header, now we
* must transfer as much of the data record as
* possible taking into account: 1. A partial
* data record may have previously been transferred,
* 2. The current block may not contain the whole data
* record.
*/
if (remlen >= data_bytes) {
/*
* Got whole record
*/
memcpy(rec->data+rec->data_len, dcr->block->bufp, data_bytes);
dcr->block->bufp += data_bytes;
dcr->block->binbuf -= data_bytes;
rec->data_len += data_bytes;
} else {
/*
* Partial record
*/
memcpy(rec->data+rec->data_len, dcr->block->bufp, remlen);
dcr->block->bufp += remlen;
dcr->block->binbuf -= remlen;
rec->data_len += remlen;
rec->remainder = 1; /* partial record transferred */
Dmsg1(450, "read_record_block: partial xfered=%d\n", rec->data_len);
set_bit(REC_PARTIAL_RECORD, rec->state_bits);
set_bit(REC_BLOCK_EMPTY, rec->state_bits);
return true;
}
rec->remainder = 0;
Dmsg4(450, "Rtn full rd_rec_blk FI=%s SessId=%d Strm=%s len=%d\n",
FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
stream_to_ascii(buf2, rec->Stream, rec->FileIndex), rec->data_len);
return true; /* transferred full record */
}
/*
* We get the slot list from the Storage daemon.
* If listall is set we run an 'autochanger listall' cmd
* otherwise an 'autochanger list' cmd
* If scan is set and listall is not, we return all slots found,
* otherwise, we return only slots with valid barcodes (Volume names)
*
* Input (output of mxt-changer list):
*
* 0:vol2 Slot num:Volume Name
*
* Input (output of mxt-changer listall):
*
* Drive content: D:Drive num:F:Slot loaded:Volume Name
* D:0:F:2:vol2 or D:Drive num:E
* D:1:F:42:vol42
* D:3:E
*
* Slot content:
* S:1:F:vol1 S:Slot num:F:Volume Name
* S:2:E or S:Slot num:E
* S:3:F:vol4
*
* Import/Export tray slots:
* I:10:F:vol10 I:Slot num:F:Volume Name
* I:11:E or I:Slot num:E
* I:12:F:vol40
*
* If a drive is loaded, the slot *should* be empty
*/
dlist *get_vol_list_from_SD(UAContext *ua, STORERES *store, bool listall, bool scan)
{
int nr_fields;
char *bp;
char dev_name[MAX_NAME_LENGTH];
char *field1, *field2, *field3, *field4, *field5;
vol_list_t *vl = NULL;
dlist *vol_list;
BSOCK *sd = NULL;
if (!(sd = open_sd_bsock(ua))) {
return NULL;
}
bstrncpy(dev_name, store->dev_name(), sizeof(dev_name));
bash_spaces(dev_name);
/*
* Ask for autochanger list of volumes
*/
if (listall) {
sd->fsend(changerlistallcmd , dev_name);
} else {
sd->fsend(changerlistcmd, dev_name);
}
vol_list = New(dlist(vl, &vl->link));
/*
* Read and organize list of Volumes
*/
while (bnet_recv(sd) >= 0) {
strip_trailing_junk(sd->msg);
/*
* Check for returned SD messages
*/
if (sd->msg[0] == '3' && B_ISDIGIT(sd->msg[1]) &&
B_ISDIGIT(sd->msg[2]) && B_ISDIGIT(sd->msg[3]) &&
sd->msg[4] == ' ') {
ua->send_msg("%s\n", sd->msg); /* pass them on to user */
continue;
}
/*
* Parse the message. list gives max 2 fields listall max 5.
* We always make sure all fields are initialized to either
* a value or NULL.
*
* For autochanger list the following mapping is used:
* - field1 == slotnr
* - field2 == volumename
*
* For autochanger listall the following mapping is used:
* - field1 == type
* - field2 == slotnr
* - field3 == content (E for Empty, F for Full)
* - field4 == loaded (loaded slot if type == D)
* - field4 == volumename (if type == S or I)
* - field5 == volumename (if type == D)
*/
field1 = sd->msg;
field2 = strchr(sd->msg, ':');
if (field2) {
*field2++ = '\0';
if (listall) {
field3 = strchr(field2, ':');
if (field3) {
*field3++ = '\0';
field4 = strchr(field3, ':');
if (field4) {
*field4++ = '\0';
field5 = strchr(field4, ':');
if (field5) {
*field5++ = '\0';
nr_fields = 5;
} else {
nr_fields = 4;
}
} else {
nr_fields = 3;
field5 = NULL;
}
} else {
nr_fields = 2;
field4 = NULL;
field5 = NULL;
}
} else {
nr_fields = 2;
field3 = NULL;
field4 = NULL;
field5 = NULL;
}
} else {
nr_fields = 1;
field3 = NULL;
field4 = NULL;
field5 = NULL;
}
/*
* See if this is a parsable string from either list or listall
* e.g. at least f1:f2
*/
if (!field1 && !field2) {
goto parse_error;
}
vl = (vol_list_t *)malloc(sizeof(vol_list_t));
memset(vl, 0, sizeof(vol_list_t));
if (scan && !listall) {
/*
* Scanning -- require only valid slot
*/
vl->Slot = atoi(field1);
if (vl->Slot <= 0) {
ua->error_msg(_("Invalid Slot number: %s\n"), sd->msg);
free(vl);
continue;
}
vl->Type = slot_type_normal;
if (strlen(field2) > 0) {
vl->Content = slot_content_full;
vl->VolName = bstrdup(field2);
} else {
vl->Content = slot_content_empty;
}
vl->Index = INDEX_SLOT_OFFSET + vl->Slot;
} else if (!listall) {
/*
* Not scanning and not listall.
*/
if (strlen(field2) == 0) {
free(vl);
continue;
}
if (!is_an_integer(field1) || (vl->Slot = atoi(field1)) <= 0) {
ua->error_msg(_("Invalid Slot number: %s\n"), field1);
free(vl);
continue;
}
if (!is_volume_name_legal(ua, field2)) {
ua->error_msg(_("Invalid Volume name: %s\n"), field2);
free(vl);
continue;
}
vl->Type = slot_type_normal;
vl->Content = slot_content_full;
vl->VolName = bstrdup(field2);
vl->Index = INDEX_SLOT_OFFSET + vl->Slot;
} else {
/*
* Listall.
*/
if (!field3) {
goto parse_error;
}
switch (*field1) {
case 'D':
vl->Type = slot_type_drive;
break;
case 'S':
vl->Type = slot_type_normal;
break;
case 'I':
vl->Type = slot_type_import;
break;
default:
vl->Type = slot_type_unknown;
break;
}
/*
* For drives the Slot is the actual drive number.
* For any other type its the actual slot number.
*/
switch (vl->Type) {
case slot_type_drive:
if (!is_an_integer(field2) || (vl->Slot = atoi(field2)) < 0) {
ua->error_msg(_("Invalid Drive number: %s\n"), field2);
free(vl);
continue;
}
vl->Index = INDEX_DRIVE_OFFSET + vl->Slot;
if (vl->Index >= INDEX_MAX_DRIVES) {
ua->error_msg(_("Drive number %d greater then INDEX_MAX_DRIVES(%d) please increase define\n"),
vl->Slot, INDEX_MAX_DRIVES);
free(vl);
continue;
}
break;
default:
if (!is_an_integer(field2) || (vl->Slot = atoi(field2)) <= 0) {
ua->error_msg(_("Invalid Slot number: %s\n"), field2);
free(vl);
continue;
}
vl->Index = INDEX_SLOT_OFFSET + vl->Slot;
break;
}
switch (*field3) {
case 'E':
vl->Content = slot_content_empty;
break;
case 'F':
vl->Content = slot_content_full;
switch (vl->Type) {
case slot_type_normal:
case slot_type_import:
if (field4) {
vl->VolName = bstrdup(field4);
}
break;
case slot_type_drive:
if (field4) {
vl->Loaded = atoi(field4);
}
if (field5) {
vl->VolName = bstrdup(field5);
}
break;
default:
break;
}
break;
default:
vl->Content = slot_content_unknown;
break;
}
}
if (vl->VolName) {
Dmsg6(100, "Add index = %d slot=%d loaded=%d type=%d content=%d Vol=%s to SD list.\n",
vl->Index, vl->Slot, vl->Loaded, vl->Type, vl->Content, NPRT(vl->VolName));
} else {
Dmsg5(100, "Add index = %d slot=%d loaded=%d type=%d content=%d Vol=NULL to SD list.\n",
vl->Index, vl->Slot, vl->Loaded, vl->Type, vl->Content);
}
vol_list->binary_insert(vl, compare_vol_list_entry);
continue;
parse_error:
/*
* We encountered a parse error, see how many replacements
* we done of ':' with '\0' by looking at the nr_fields
* variable and undo those. Number of undo's are nr_fields - 1
*/
while (nr_fields > 1 && (bp = strchr(sd->msg, '\0')) != NULL) {
*bp = ':';
nr_fields--;
}
ua->error_msg(_("Illegal output from autochanger %s: %s\n"),
(listall) ? _("listall") : _("list"), sd->msg);
free(vl);
continue;
}
close_sd_bsock(ua);
if (vol_list->size() == 0) {
delete vol_list;
vol_list = NULL;
}
return vol_list;
}
/*
* Open the next part file.
* - Close the fd
* - Increment part number
* - Reopen the device
*/
int dvd_open_next_part(DCR *dcr)
{
DEVICE *dev = dcr->dev;
Dmsg6(29, "Enter: == open_next_part part=%d npart=%d dev=%s vol=%s mode=%d file_addr=%d\n",
dev->part, dev->num_dvd_parts, dev->print_name(),
dev->getVolCatName(), dev->openmode, dev->file_addr);
if (!dev->is_dvd()) {
Dmsg1(100, "Device %s is not dvd!!!!\n", dev->print_name());
return -1;
}
/* When appending, do not open a new part if the current is empty */
if (dev->can_append() && (dev->part > dev->num_dvd_parts) &&
(dev->part_size == 0)) {
Dmsg0(29, "open_next_part exited immediately (dev->part_size == 0).\n");
return dev->fd();
}
dev->close_part(dcr); /* close current part */
/*
* If we have a spooled part open, write it to the
* DVD before opening the next part.
*/
if (dev->is_part_spooled()) {
Dmsg2(100, "Before open next write previous. part=%d num_parts=%d\n",
dev->part, dev->num_dvd_parts);
if (!dvd_write_part(dcr)) {
Dmsg0(29, "Error in dvd_write part.\n");
return -1;
}
}
dev->part_start += dev->part_size;
dev->part++;
Dmsg2(29, "Inc part=%d num_dvd_parts=%d\n", dev->part, dev->num_dvd_parts);
/* Are we working on a part past what is written in the DVD? */
if (dev->num_dvd_parts < dev->part) {
POOL_MEM archive_name(PM_FNAME);
struct stat buf;
/*
* First check what is on DVD. If our part is there, we
* are in trouble, so bail out.
* NB: This is however not a problem if we are writing the first part.
* It simply means that we are over writing an existing volume...
*/
if (dev->num_dvd_parts > 0) {
make_mounted_dvd_filename(dev, archive_name); /* makes dvd name */
Dmsg1(100, "Check if part on DVD: %s\n", archive_name.c_str());
if (stat(archive_name.c_str(), &buf) == 0) {
/* bad news bail out */
dev->set_part_spooled(false);
Mmsg1(&dev->errmsg, _("Next Volume part already exists on DVD. Cannot continue: %s\n"),
archive_name.c_str());
return -1;
}
}
#ifdef neeeded
Dmsg2(400, "num_dvd_parts=%d part=%d\n", dev->num_dvd_parts, dev->part);
make_spooled_dvd_filename(dev, archive_name); /* makes spool name */
/* Check if the next part exists in spool directory . */
Dmsg1(100, "Check if part on spool: %s\n", archive_name.c_str());
if ((stat(archive_name.c_str(), &buf) == 0) || (errno != ENOENT)) {
Dmsg1(29, "======= Part %s is in the way, deleting it...\n", archive_name.c_str());
/* Then try to unlink it */
if (unlink(archive_name.c_str()) < 0) {
berrno be;
dev->set_part_spooled(false);
dev->dev_errno = errno;
Mmsg2(dev->errmsg, _("open_next_part can't unlink existing part %s, ERR=%s\n"),
archive_name.c_str(), be.bstrerror());
return -1;
}
}
#endif
}
Dmsg2(400, "Call dev->open(vol=%s, mode=%d)\n", dcr->getVolCatName(),
dev->openmode);
/* Open next part. Note, this sets part_size for part opened. */
if (dev->open(dcr, OPEN_READ_ONLY) < 0) {
return -1;
}
dev->set_labeled(); /* all next parts are "labeled" */
return dev->fd();
}
/*
* NOTE! This routine opens the SD socket but leaves it open
*/
static bool send_label_request(UAContext *ua, MEDIA_DBR *mr, MEDIA_DBR *omr,
POOL_DBR *pr, bool relabel, bool media_record_exists,
int drive)
{
BSOCK *sd;
char dev_name[MAX_NAME_LENGTH];
bool ok = false;
uint64_t VolBytes = 0;
if (!(sd=open_sd_bsock(ua))) {
return false;
}
bstrncpy(dev_name, ua->jcr->res.wstore->dev_name(), sizeof(dev_name));
bash_spaces(dev_name);
bash_spaces(mr->VolumeName);
bash_spaces(mr->MediaType);
bash_spaces(pr->Name);
if (relabel) {
bash_spaces(omr->VolumeName);
sd->fsend("relabel %s OldName=%s NewName=%s PoolName=%s "
"MediaType=%s Slot=%d drive=%d",
dev_name, omr->VolumeName, mr->VolumeName, pr->Name,
mr->MediaType, mr->Slot, drive);
ua->send_msg(_("Sending relabel command from \"%s\" to \"%s\" ...\n"),
omr->VolumeName, mr->VolumeName);
} else {
sd->fsend("label %s VolumeName=%s PoolName=%s MediaType=%s "
"Slot=%d drive=%d",
dev_name, mr->VolumeName, pr->Name, mr->MediaType,
mr->Slot, drive);
ua->send_msg(_("Sending label command for Volume \"%s\" Slot %d ...\n"),
mr->VolumeName, mr->Slot);
Dmsg6(100, "label %s VolumeName=%s PoolName=%s MediaType=%s Slot=%d drive=%d\n",
dev_name, mr->VolumeName, pr->Name, mr->MediaType, mr->Slot, drive);
}
/*
* We use bget_dirmsg here and not bnet_recv because as part of
* the label request the stored can request catalog information for
* any plugin who listens to the bsdEventLabelVerified event.
* As we don't want to loose any non protocol data e.g. errors
* without a 3xxx prefix we set the allow_any_message of
* bget_dirmsg to true and as such is behaves like a normal
* bnet_recv for any non protocol messages.
*/
while (bget_dirmsg(sd, true) >= 0) {
ua->send_msg("%s", sd->msg);
if (sscanf(sd->msg, "3000 OK label. VolBytes=%llu ", &VolBytes) == 1) {
ok = true;
}
}
unbash_spaces(mr->VolumeName);
unbash_spaces(mr->MediaType);
unbash_spaces(pr->Name);
mr->LabelDate = time(NULL);
mr->set_label_date = true;
if (ok) {
if (media_record_exists) { /* we update it */
mr->VolBytes = VolBytes;
mr->InChanger = mr->Slot > 0; /* if slot give assume in changer */
set_storageid_in_mr(ua->jcr->res.wstore, mr);
if (!db_update_media_record(ua->jcr, ua->db, mr)) {
ua->error_msg("%s", db_strerror(ua->db));
ok = false;
}
} else { /* create the media record */
set_pool_dbr_defaults_in_media_dbr(mr, pr);
mr->VolBytes = VolBytes;
mr->InChanger = mr->Slot > 0; /* if slot give assume in changer */
mr->Enabled = 1;
set_storageid_in_mr(ua->jcr->res.wstore, mr);
if (db_create_media_record(ua->jcr, ua->db, mr)) {
ua->info_msg(_("Catalog record for Volume \"%s\", Slot %d successfully created.\n"),
mr->VolumeName, mr->Slot);
/*
* Update number of volumes in pool
*/
pr->NumVols++;
if (!db_update_pool_record(ua->jcr, ua->db, pr)) {
ua->error_msg("%s", db_strerror(ua->db));
}
} else {
ua->error_msg("%s", db_strerror(ua->db));
ok = false;
}
}
} else {
ua->error_msg(_("Label command failed for Volume %s.\n"), mr->VolumeName);
}
return ok;
}
/* Write session label
* Returns: false on failure
* true on success
*/
bool write_session_label(DCR *dcr, int label)
{
JCR *jcr = dcr->jcr;
DEVICE *dev = dcr->dev;
DEV_RECORD *rec;
DEV_BLOCK *block = dcr->block;
char buf1[100], buf2[100];
rec = new_record();
Dmsg1(130, "session_label record=%x\n", rec);
switch (label) {
case SOS_LABEL:
set_start_vol_position(dcr);
break;
case EOS_LABEL:
if (dev->is_tape()) {
dcr->EndBlock = dev->EndBlock;
dcr->EndFile = dev->EndFile;
} else {
dcr->EndBlock = (uint32_t)dev->file_addr;
dcr->EndFile = (uint32_t)(dev->file_addr >> 32);
}
break;
default:
Jmsg1(jcr, M_ABORT, 0, _("Bad Volume session label = %d\n"), label);
break;
}
create_session_label(dcr, rec, label);
rec->FileIndex = label;
/*
* We guarantee that the session record can totally fit
* into a block. If not, write the block, and put it in
* the next block. Having the sesssion record totally in
* one block makes reading them much easier (no need to
* read the next block).
*/
if (!can_write_record_to_block(block, rec)) {
Dmsg0(150, "Cannot write session label to block.\n");
if (!dcr->write_block_to_device()) {
Dmsg0(130, "Got session label write_block_to_dev error.\n");
free_record(rec);
return false;
}
}
if (!write_record_to_block(dcr, rec)) {
free_record(rec);
return false;
}
Dmsg6(150, "Write sesson_label record JobId=%d FI=%s SessId=%d Strm=%s len=%d "
"remainder=%d\n", jcr->JobId,
FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
stream_to_ascii(buf2, rec->Stream, rec->FileIndex), rec->data_len,
rec->remainder);
free_record(rec);
Dmsg2(150, "Leave write_session_label Block=%ud File=%ud\n",
dev->get_block_num(), dev->get_file());
return true;
}
/*
* NOTE! This routine opens the SD socket but leaves it open
*/
static bool send_label_request(UAContext *ua, MEDIA_DBR *mr, MEDIA_DBR *omr,
POOL_DBR *pr, int relabel, bool media_record_exists,
int drive)
{
BSOCK *sd;
char dev_name[MAX_NAME_LENGTH];
bool ok = false;
bool is_dvd = false;
uint64_t VolBytes = 0;
if (!(sd=open_sd_bsock(ua))) {
return false;
}
bstrncpy(dev_name, ua->jcr->wstore->dev_name(), sizeof(dev_name));
bash_spaces(dev_name);
bash_spaces(mr->VolumeName);
bash_spaces(mr->MediaType);
bash_spaces(pr->Name);
if (relabel) {
bash_spaces(omr->VolumeName);
sd->fsend("relabel %s OldName=%s NewName=%s PoolName=%s "
"MediaType=%s Slot=%d drive=%d",
dev_name, omr->VolumeName, mr->VolumeName, pr->Name,
mr->MediaType, mr->Slot, drive);
ua->send_msg(_("Sending relabel command from \"%s\" to \"%s\" ...\n"),
omr->VolumeName, mr->VolumeName);
} else {
sd->fsend("label %s VolumeName=%s PoolName=%s MediaType=%s "
"Slot=%d drive=%d",
dev_name, mr->VolumeName, pr->Name, mr->MediaType,
mr->Slot, drive);
ua->send_msg(_("Sending label command for Volume \"%s\" Slot %d ...\n"),
mr->VolumeName, mr->Slot);
Dmsg6(100, "label %s VolumeName=%s PoolName=%s MediaType=%s Slot=%d drive=%d\n",
dev_name, mr->VolumeName, pr->Name, mr->MediaType, mr->Slot, drive);
}
while (sd->recv() >= 0) {
int dvd;
ua->send_msg("%s", sd->msg);
if (sscanf(sd->msg, "3000 OK label. VolBytes=%llu DVD=%d ", &VolBytes,
&dvd) == 2) {
is_dvd = dvd;
ok = true;
}
}
unbash_spaces(mr->VolumeName);
unbash_spaces(mr->MediaType);
unbash_spaces(pr->Name);
mr->LabelDate = time(NULL);
mr->set_label_date = true;
if (is_dvd) {
/* We know that a freshly labelled DVD has 1 VolParts */
/* This does not apply to auto-labelled DVDs. */
mr->VolParts = 1;
}
if (ok) {
if (media_record_exists) { /* we update it */
mr->VolBytes = VolBytes;
mr->InChanger = mr->Slot > 0; /* if slot give assume in changer */
mr->StorageId = ua->jcr->wstore->StorageId;
if (!db_update_media_record(ua->jcr, ua->db, mr)) {
ua->error_msg("%s", db_strerror(ua->db));
ok = false;
}
} else { /* create the media record */
set_pool_dbr_defaults_in_media_dbr(mr, pr);
mr->VolBytes = VolBytes;
mr->InChanger = mr->Slot > 0; /* if slot give assume in changer */
mr->StorageId = ua->jcr->wstore->StorageId;
mr->Enabled = 1;
if (db_create_media_record(ua->jcr, ua->db, mr)) {
ua->info_msg(_("Catalog record for Volume \"%s\", Slot %d successfully created.\n"),
mr->VolumeName, mr->Slot);
/* Update number of volumes in pool */
pr->NumVols++;
if (!db_update_pool_record(ua->jcr, ua->db, pr)) {
ua->error_msg("%s", db_strerror(ua->db));
}
} else {
ua->error_msg("%s", db_strerror(ua->db));
ok = false;
}
}
} else {
ua->error_msg(_("Label command failed for Volume %s.\n"), mr->VolumeName);
}
return ok;
}
/*
* Write a Record to the block
*
* Returns: false on failure (none or partially written)
* true on success (all bytes written)
*
* and remainder returned in packet.
*
* We require enough room for the header, and we deal with
* two special cases. 1. Only part of the record may have
* been transferred the last time (when remainder is
* non-zero), and 2. The remaining bytes to write may not
* all fit into the block.
*/
bool write_record_to_block(DCR *dcr, DEV_RECORD *rec)
{
bool retval = false;
char buf1[100], buf2[100];
DEV_BLOCK *block = dcr->block;
/*
* After this point the record is in nrec not rec e.g. its either converted
* or is just a pointer to the same as the rec pointer being passed in.
*/
while (1) {
ASSERT(block->binbuf == (uint32_t)(block->bufp - block->buf));
ASSERT(block->buf_len >= block->binbuf);
Dmsg6(890, "write_record_to_block() FI=%s SessId=%d Strm=%s len=%d\n"
"rem=%d remainder=%d\n",
FI_to_ascii(buf1, rec->FileIndex), rec->VolSessionId,
stream_to_ascii(buf2, rec->Stream, rec->FileIndex), rec->data_len,
rec->remlen, rec->remainder);
switch (rec->state) {
case st_none:
/*
* Figure out what to do
*/
rec->state = st_header;
continue; /* go to next state */
case st_header:
/*
* Write header
*
* If rec->remainder is non-zero, we have been called a
* second (or subsequent) time to finish writing a record
* that did not previously fit into the block.
*/
if (!write_header_to_block(block, rec)) {
goto bail_out; /* write block then come back here */
}
rec->state = st_data; /* after header, now write data */
continue;
/*
* Write continuation header
*/
case st_header_cont:
write_continue_header_to_block(block, rec);
rec->state = st_data;
if (rec->remlen == 0) {
goto bail_out; /* Partial transfer */
}
continue;
/*
* Write normal data
*/
case st_data:
/*
* Write data
*
* Part of it may have already been transferred, and we
* may not have enough room to transfer the whole this time.
*/
if (rec->remainder > 0) {
if (!write_data_to_block(block, rec)) {
rec->state = st_header_cont;
goto bail_out;
}
}
rec->remainder = 0; /* did whole transfer */
rec->state = st_none;
retval = true;
goto bail_out;
default:
Dmsg0(000, "Something went wrong. Default state.\n");
rec->state = st_none;
retval = true;
goto bail_out;
}
}
bail_out:
return retval;
}
